Detachable rim for vehicle-wheels.



P. G. GHALLISS. DETACHABLE RIM FOR VEHICLE WHEELS.

APPLIOATION FILED NOV.23, 1907.

943,81 1 Patented Dec. 21, 1909.

are snares ICE,

Peru's o ZPHILIP GEORGE CHALLISS, )F FOREST HILL, ENGLAND.

nErAcHaBLE RIM FOR VEHICLE-mm.

Application filed November 23, 1907. Serial No. 403,445.

'To all whom it may concern: Y

Be it known that I, PHILIP GEORGE CHAL- lass, gentleman, a subject of the King of the said removable Great Britain, residing at 12 The Park, Forest Hill, in the county of Surrey, in England, have invented new and useful Improvements in and Relating to Detachable Rims for Vehicle-Wheels, of which the following is a specification.

My said invention has referenceto improvements in and relating to detachable riins of pneumatic-tired wheels for motor cars and other vehicles, and its objects are,

tirstly to enable a damaged tire with its rim to be quickly, and easily replaced, when on a journey by a spare tire carried, as is now usual, mounted on a rim, and inflated ready "for use; the detachment and attachment. being efi ectetl in each case by a single operation, which simultaneously unlocks or locks the rim to the telly, or bonding band, at any desired number of places; and, secondly, to facilitate the removal of a damaged tire from its rim.

In carrying my invention into effect, I make the rim in two parts. The main part A adapted to slide on to the wheel telly or bonding-band B from one side, and to be secured thereon by the means hereinafter 'idicated, and it has, formed on it, one of the usual annular tire-cover-rctaining lips (j. The other part of the rim consists essentially of the other annular tire-cover-retaining lip C, the said part C is divided trans-, ver.--.cly, and fitted with means, such as a rignt and left handed screw C working in suitable nuts secured in, or on, its two ends 0, for drawing the said two ends C together, or forcihg them apart, thereby contracting or expanding the said part C; the said part C fits removably upon the said main part A, and is retained laterally thereon by a flange A formed on the said main part A, For the purpose of securing the said rim upon the said felly or bonding-band B, I

form the annular grooye A fin the said main part A, preferably'immediately under part C, in the said groove A place a revoluble ring D divided transversely in one place. On t e said revoln'ole ring D, I pivotally mount, in the said groove A a series of V awl-shaped latches or fingers D, the free ends or points of the said latches D are beveled on one side, and arc adapted to projectthrough slotsA,

cut in the said annular groove A ,.until they engage with a ridge B, beveledon the side meeting the said latches D, to a correspondin angle to the bevel on the said free ends of the said latches D, the said ridge 5 is formed on the said bonding-band B by overturning or doubling back the-edge B The base 91' inner Wall A of the said annular groove -A ,'-forms a female cone of a suitable angle, and the said of thesame angle, the arrangement being such, thatas the beveled surfaces of. the said latches D are forced, by the rotationof the said revoluble rin I), across the corralspending beveled surtace of the said ridge B, a cramping action is brought about, drawing the said female cone A, over the said male cone B thereby tightening the whole. The said revolublc ring D, is adapted to be rotated'by a right and left handed screw D working in nuts D, one of which is attached to the said ring D, and the other to the said main part A, andthe said latches are forced inwardly into contact with the said bonding-band B, by the rotation of the said ring in one direction, driving them against cam or like surfaces D projecting from the wall A of the said annular groove A and are drawn back out of contact with the said bonding-band B, by therotation of the said revoluble ring D in the opposite direction.

In the accompanying drawings :Figure 1, is a transverse section, showing the main part A, its lip C, the removable hp C, with its right and left handed screw C and the flange A, which holds it laterally; the ring D, and pivotally mounted thereon, the latches D, projecting through the slots A, their beveled points D in contact with the beveled ridge B" of the bonding-band B, the edge B of which is coned to the same angle as the base A*, of the annular groove A from the .wall A, of which the cams Fig. 2, is a longitudinal section part of which is reduced in diameter, showing the cams D,

the latches D, the slots A through which they project, the bonding-band B, the right and left handed screw D, and its nuts D.

What I do claim as my invention, and desire to secure by Letters Patent, is

1. An attachment for vehicle wheels comprising'an annular member adapted to be applied to a wheel-telly and having opposed overturned edge B of, the sald bonding-band B, forms a male cone" D project. j'

tire-retaining flanges, said annular member also having a lateral annular groove, and a locking ring arranged in said annular groove and provided with latches adapted to have a locking action or engagement with said folly-member.

2. An attachment for vehicle wheels including an annular member having opposed tire, retaining flanges, said annular member having a lateral annular groove, a fellymember having an inturned overl ing portion upon which the bottom of sai grooved portion of said annular member rests, and a locking ringiarran ed in said groove and provided with late es with their effective portions assing through apertures in the bottom 0 the groove and having beveled surfaces engaging the inner edge of said inturned portion oi the telly-member.

3. An attachment for vehicle wheels eom prising an annular member adapted to be applied to a wheel-telly and havin opposed tire-retaining. flanges and a latera annular groove having one wall provided 'withcams, and a lockin ring arran ed in said-groove and provide with pivote latches engaging said cams and assing through the bottom of said groove and engaging said filly-member, and means for actuating said locking ring and accordingly effecting the synchronous locking action of its latches.

In witness whereof I have hereunto setmy hand in presence of two witnesses PHILIP GEORGE CHALLISS.

Witnesses EDMUND S. G. DAVID KIBBY.

GILBERT, 

